3566220 has 72 divisors (see below), whose sum is σ = 11625264. Its totient is φ = 814464.

The previous prime is 3566197. The next prime is 3566231. The reversal of 3566220 is 226653.

3566220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2334 + ... + 3546.

It is an arithmetic number, because the mean of its divisors is an integer number (161462).

Almost surely, 2^3566220 is an apocalyptic number.

3566220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3566220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5812632).

3566220 is an abundant number, since it is smaller than the sum of its proper divisors (8059044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3566220 is a wasteful number, since it uses less digits than its factorization.

3566220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 3566220 is about 1888.4438037707. The cubic root of 3566220 is about 152.7810101306.

The spelling of 3566220 in words is "three million, five hundred sixty-six thousand, two hundred twenty".